Roof for a truck



FIG. 1 is a perspective view of our roof for a truck;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a reduced perspective view of our design.

The appearance of the roof underside forms no part of the claimed design. In addition, the broken line showing of a truck, in FIG. 7, depicts environment and is not part of the claimed design. 

The ornamental design for a roof for a truck, as shown and described. 